Engine flush (did i just waste my $$)

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guinnessman

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Hey guys so i go in for an oil change, and i asked the employee at Avis Lube about what i've experienced after an oil change. Basically i told him that i check my oil every fill up, and even 300/400 miles after an oil change the oil is BLACK and muddy looking (after being driven while the engine is hot).

He suggested an engine flush, it was like $90 in total including the oil change. They hooked some big machine up to the engine and it flushed the engine.

Good/Bad?

I guess i'll see after about 400 miles if the oil is pretty clear. I would assume that sludge is no good, but then again maybe it is good to block leaks lol.:eek:
 
I'm on the fence about it, we had a rep come to the shop and hook it up and demo one for us. usually the oil will be dirty(ish) just after a start up, let me correct this not dirty but kinda a copper color (as new oil should) he did a flush on a employees car and we started it and checked the oil color, it looked to be empty cuz the oil was so clean. you gotta think the oil on the dipstick is very thin and should be damn near clear. did we buy the machine, no, we figured it would be a hard sell to the customer. would i pay to have it done, currently no, i dont have any oil issues (knocks on desk) at 173k (i think right around that)
 
I stay away from the jiffy oil change places to start. If you must bring your own oil and have them use it. With syth. oil th eengine should stay clean. 130+K on the clock and the heads were as clean as can be. No build up. Run sythetic oils.
 
heres my lower end at 148k, just routine oil changes and the synth blend out of the gun at work

148k lower end 1.jpg


148k lower end 2.jpg
 
Looks clean There chicken. Any high detergent synthetic oil also will clean the engine if you've been running lower quality oils. Amsoil will clean sludge quickly from an engine. Swiched to amsoil in my old f-150 and sh!t I had some weakin/missing gaskets to fix. What a mess.
 
just the generic out of the gun, delivered by rainbow oils? hell what ever 95% of the shyt that runs through the door gets
 
I run a quart of kerosene through the engine RIGHT before an oil change.

Let it IDLE with no load, and pour the kerosene in. After a few changes, the crankcase, and cam valleys are clean again.

I run Mobil 1 Synthetic/filter now, and have had no issues.


Mike
 
94m5 said:
I run a quart of kerosene through the engine RIGHT before an oil change.

Let it IDLE with no load, and pour the kerosene in. After a few changes, the crankcase, and cam valleys are clean again.

I run Mobil 1 Synthetic/filter now, and have had no issues.


Mike
Click to expand...

hrrm.... interesting.... how long do you let it run for?
 
I used to use ATF fluid too in the oil. Not on the Mark VIII, on the Mark IV.

Often the cause of black oil seems to be fuel/air mixture issues. Such as old OS2, etc. There is no reason oil should turn black quick unless something is contaminating it.
 
Bottom ends usually look clean, it's in the heads where there is a lot more oil settling that you will find dirt laying around. This is a partial reason for high quality synthetic oil and quality filter changes. Below is a head of my car at 85,000 and it was clean.

100_2480.jpg
 
im surprised someone hasn't said anything about using seafoam for an engine flush......any opinions?
 
I am gun shy of trying to be a chemist and mixing some of these concoctions with your motor oil. What may have worked in the past does not necessarily mean its good today. You can't measure what you are doing to the boundary lubrication package that is currently in our oils. Also with the closer engine clearances, you could run the risk of dislodging some particles in one area only to be trapped possibly in a more critical one (bearing). For me, I feel it is more cost effective to use good quality oil, and filter along with the recommended changes, and you motor should stay clean for many miles.(Don't forget those maintenance items like air cleaners, pcv valves etc)
 
Save your money of that Auto - RX crap, people.

Go get some sand, pour it in, bypass the oil filter (it will get plugged up, otherwise), and start the engine. Let idle for up to 30 minutes, and it will polish and shine the insides like it's no one's business.


:D


Sadly, I remember seeing a youtube video (or was it a story somehwere) where a a kid actually did that to polish his engine.
 
Frogman said:
Save your money of that Auto - RX crap, people.

Go get some sand, pour it in, bypass the oil filter (it will get plugged up, otherwise), and start the engine. Let idle for up to 30 minutes, and it will polish and shine the insides like it's no one's business.


:D


Sadly, I remember seeing a youtube video (or was it a story somehwere) where a a kid actually did that to polish his engine.
Click to expand...

Damn that hurt my gut. :D:D
 
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